3D charts

Scatter / bubble 3D

Three thousand readings at their own coordinates, each coloured by a fourth value measured there. The colour carries the extra number: a point has no size of its own.

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scenes/scatter-bubble-3d

const cloud = plot.uploadPoints(clusters(3000));
plot.showPoints(cloud);
plot.frameScene();

Calls

3 in the code above, in the order it makes them

plot.uploadPoints(points: PointSet): PointsHandle

Upload a point cloud and return a handle naming it.

plot.showPoints(handle: PointsHandle): void

Draw the point cloud handle names.

plot.frameScene(): void

Point the camera at the middle of everything uploaded, far enough back to see it.

Call after uploading. A scene measured in grid cells or in millimetres is nowhere near where a camera starts, and without this the first thing a caller sees is an empty canvas.